Name: Hinge hole opener Size: Hole opener: 12*6*8CM/4.72*2.36*3.15 inches Drill: diameter 35MM, limit outer diameter 41MM, hole depth 10~12MM List: Hole opener *1+ drill *1 Accurate positioning, easy measurement: matching hole position positioning ruler, detachable, make the hole more accurate. Clear scale, at a glance: easy to measure the distance from the door door to the desired opening center, 30-100MM measurable range. No fixed restrictions, more convenient operation: the electric drill can be moved together, the drill and the hole opener are separated. Precise limit, one-click opening: designed for 12MM depth and 35MM diameter holes, the hexagonal handle is easy to avoid slipping. High quality material: Made of high quality alloy material, strong wear resistance, strong and not easy to deformation, with longer service life, to provide you with long-term stable installation support. Fast adjustment, stable clamping: fast fixing clamp, easy to adjust the fixed position, 15-25MM wood thickness fast clamping.